Ladies and Gentlemen and Champion Rewiewericus and Unparalled Cliff and Pearl Diver, the Bayou's One-Eyed Pirate: The Infamous Master Eke:

Whatever you do, hold off on upgrading or purchasing your new ASG 2.5: There's something to be said about an aftermarket cable for both the AS2 and ASG-2. I have been listening to a literally different AS2 today than what I've had for the last six months. I have been Nocturnalized.

Yes, I bought both the Nocturnal Audio Hydra 8-conductor silver plus copper hybrid custom cable($126) and the Hydra Nexus Silver plus Copper Interconnect($39) from Treoo. For starters, lets say a 3db increase in volume, increased treble/clarity openness, veil lifted. But an equal, balanced boost in EQ. An awake, exciting clear, silky smooth IEM, vs a veiled, smoky room bass monster!! For those familiar with dr.loudness-war.com, I'm talking the difference between a 6 on the 1-7 bad scale to a 16 on the good(14-20) scale. I'm talking about a noticable increase in dynamic range and clarity. I'm talking about a noticable, not subtle difference just using their interconnect!!!(I'm coming from an Ibasso copper interconnect) I'm talking about as noticable a difference between adding a very good amp, such as the Tralucent T1, or even a Leckerton to your player!

My sensitivity to sibilance is low, can't stand the GR07(used to love it till I heard an IEM with no sibilance)! So no sibilance with this cable, brightness, yes. The bass is no longer boomy and overpowering at times(my bass vol is totally down). The Hydra controls and puts the bass "in its place." The only problem I had, which was a biggggg problem, is that the housing/socket for the headphone connector on the Nocturnal was 1/16" too wide and needed to be dremmelled down to fit in deep enough so it wouldn't keep falling out. I may also have to use this new stuff called sugru, which is a self-setting rubber, to keep the cable in.

Whether or not you get Nocturnalized or not is not my point. My point is that I believe any decent aftermarket cable is going to make a noticable difference in your Aurisonic IEM. One Headfier loves his Moon cable with his AS2, another loves his way expensive Tralucent cable, another loves his Swan cable with his ASG-2. Honestly I feel like I have a new exciting IEM just from a cable. Just make sure the connector will fit the socket, or be prepared to make it fit

I went and check on the Treoo.com site for the Noctural cable and can you cnfirm that yoour cable had the Westone connector for the WR4? and you still had to adjust them?

Here's a pic comparing my dremmeled down Hydra to fit into my AS2 and the stock cable. As you can see, the very tip of the plastic on the Hydra westone connector fit into the socket, but after the first 1/16 of an inch the plastic widens and that's what I had to shave down quite a bit in order for it to plug in almost all the way:

There are some cables out there that are particularly thin, and end up actually being erconomically poor, as they dont seem to retain their shape well. For example, the cables fiio offers seems to struggle with keeping straight or nicely rounded when they do bend.

Fiio RC: Sounds warm but clear. It sounds like the ASG-2 that I got to know. Dark. Now I've been using the ASG-2 with stock cable and comply tips for a while. Just recently changed back to meelec balanced (stock biflanges) and Fiio Cable. There is some sibilance as usual. The mids are veiled but intelligeble. Still a very good sound.

NA Hydra 4: Immediately sounds more mid centric, less mid bassy. First I wonder where the bass disappeared. Readjusted the fit. 5 seconds in, the sound "opened" up. Now it sounded more like a mid centric iem instead of a bassy iem with very prominent mids. Bass is definitely there. It's as deep as before just not as prominent. Mids are actually less warm. Less big and fuzzy. One of my problems with the mids were the bassy male vocals and soft, fuzzy guitars. Like candied sugar. One of my favourite songs for comparing that is Writing on the walls by Underoath. Such a chaotic song that's sensitive to congestion and to warm, soft, mids.

Conclusions: The differences are actually clear to my ears. The NA Hydra 4 has less mid bass. Less warm mids. About the same treble quantity. There is however a more open sound. A cleaner sound that I think is part of the "dynamic increase". Sounds less congested and there are fewer things that take up space in the audio spectrum leaving more room. Overall I'd say well worth it. And I understand the part about this being (almost) a different iem.Edited by MoonYeol - 4/8/14 at 9:34am

Naturally I would prefer to buy from Aurisonics but is it true that the 2.5 is here? I am waiting on a FiiO X5 to arrive and I think the end goal IEM for me is the ASG-2.5. I had the previous ASG-2 and it is probably my favorite IEM to date.

Naturally I would prefer to buy from Aurisonics but is it true that the 2.5 is here? I am waiting on a FiiO X5 to arrive and I think the end goal IEM for me is the ASG-2.5. I had the previous ASG-2 and it is probably my favorite IEM to date.

it's a pretty simple matter to contact Aurisonics to determine whether they are a dealer or not -- important in terms of warranty, and whether they are real or fake, and if they are even in stock...